The sensor is S1 in this alarm that we found in a Radio Electronics magazine from May 1971. Several sensors can be used in series. The SCR supports equivalents from the 106 series.
This project shows how to use an SCR in a starter circuit for a common fluorescent lamp. The SCR...
This circuit was found in a 1967 Motorola manual. Its purpose is to provide a very accurate...
This interesting application of a stepper motor as an encoder serves to test its application...